build(deps-dev): bump markdownlint-cli2 from 0.19.1 to 0.20.0

Bumps [markdownlint-cli2](https://github.com/DavidAnson/markdownlint-cli2) from 0.19.1 to 0.20.0.
- [Changelog](https://github.com/DavidAnson/markdownlint-cli2/blob/main/CHANGELOG.md)
- [Commits](DavidAnson/markdownlint-cli2@v0.19.1...v0.20.0)

---
updated-dependencies:
- dependency-name: markdownlint-cli2
  dependency-version: 0.20.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -57,7 +57,7 @@
     "eslint": "^9.39.1",
     "hugo-bin": "^0.149.2",
     "husky": "^9.1.7",
-    "markdownlint-cli2": "^0.19.1",
+    "markdownlint-cli2": "^0.20.0",
     "neostandard": "^0.12.2",
     "netlify-plugin-hugo-cache-resources": "^0.2.1",
     "postcss-cli": "^11.0.1",